Abstract: Systems and methods are provided a helmet that includes shell comprising a plurality of connection receptacles, a first connection receptacle having a shape that is different from a shape of a second connection receptacle. A flexible suspension web includes a plurality of straps for supporting the shell on a head of a wearer, each of the straps including a connection tab, where a first connection tab, which is associated with a first strap, has a shape corresponding to the shape of the first connection receptacle, and where a second connection tab, which is associated with a second strap, has a shape corresponding to the shape of the second connection receptacle.

Abstract: Systems and methods are provided for a helmet having a configurable headband assembly. A helmet includes a helmet liner having a plurality of headband attachment points, each headband attachment point including a first opening for receiving and holding a primary attachment structure; and a second opening for receiving a locking pin. A headband assembly is configured to assist in fitting the helmet to a wearer's head. The headband assembly includes a fit adjustment mechanism configured to adjust an internal shape of the headband assembly; and a plurality of attachment structure sets, an attachment structure set including a primary attachment structure; and a locking pin.

Abstract: Systems and methods are provided for a helmet shell mounting assembly. A system includes a mounting component and a locking slider configured to interface with the mounting component when in an engaged position to secure an outer helmet shell to an inner helmet.

Abstract: A system includes a carrier system adapted to be worn by a user and to support at least one of a plurality of differently sized tanks of breathing gas, a bracket connector attached to the carrier system, and a plurality of brackets. The carrier system may, for example, be part of a breathing apparatus such as a self-contained breathing apparatus. Each of the plurality of brackets has a different configuration. Each of the plurality of brackets is attachable to an associated one of the plurality of differently sized tanks and to the bracket connector. For each one of the plurality of brackets, an assembly that includes the one of the plurality of brackets and the associated one of the plurality of differently sized tanks, when attached to the bracket connector, positions the associated one of the plurality of differently sized tanks in a predetermined manner relative to the carrier system.

Abstract: A tank attachment arrangement for a self-contained breathing apparatus having at least one tank, including: a base member having a saddle portion comprising a contact side having at least one contact member directly or indirectly attached thereto, the at least one contact member configured to contact a surface of the at least one tank; and at least one tank retainer arrangement configured to retain the at least one tank with respect to the base member; wherein the at least one contact member includes at least one sloped portion to facilitate engagement or disengagement of the at least one tank with the tank attachment arrangement.

Abstract: An SCBA backpack for air cylinders includes a chassis with a cradle receiving arrangement and a tank cradle for holding at least one air cylinder, wherein the tank cradle is removably secured to the chassis. Such an arrangement permits a variety of different tank cradles that may secure one or more cylinders but that are still compatible with a common backpack chassis.

Abstract: An adjustable lumbar support for mounting upon the chassis of a backpack has a lumbar support pad and a slider assembly slidably attaching the lumbar support pad to the chassis. The assembly has a locking slider that, together with the support pad, is indexable to at least two different positions along the chassis. A backpack may have such an adjustable lumbar support.

Abstract: A fall protection arrangement including a rotatable hub and a lifeline having a first end attached to the hub and a second end for removable attachment to a user, an engagement mechanism to prevent rotation of the hub upon activation, and a braking arrangement to brake the payout of the lifeline during a fall event.

Abstract: A system includes a carrier system adapted to be worn by a user and to support at least one of a plurality of differently sized tanks of breathing gas, a bracket connector attached to the carrier system, and a plurality of brackets. The carrier system may, for example, be part of a breathing apparatus such as a self-contained breathing apparatus. Each of the plurality of brackets has a different configuration. Each of the plurality of brackets is attachable to an associated one of the plurality of differently sized tanks and to the bracket connector. For each one of the plurality of brackets, an assembly that includes the one of the plurality of brackets and the associated one of the plurality of differently sized tanks, when attached to the bracket connector, positions the associated one of the plurality of differently sized tanks in a predetermined manner relative to the carrier system.

Abstract: A tank attachment arrangement for a self-contained breathing apparatus having at least one tank, including: a base member having a saddle portion comprising a contact side having at least one contact member directly or indirectly attached thereto, the at least one contact member configured to contact a surface of the at least one tank; and at least one tank retainer arrangement configured to retain the at least one tank with respect to the base member; wherein the at least one contact member includes at least one sloped portion to facilitate engagement or disengagement of the at least one tank with the tank attachment arrangement.

Abstract: An adjustable lumbar support for mounting upon the chassis of a backpack has a lumbar support pad and a slider assembly slidably attaching the lumbar support pad to the chassis. The assembly has a locking slider that, together with the support pad, is indexable to at least two different positions along the chassis. A backpack may have such an adjustable lumbar support.

Abstract: An SCBA backpack for air cylinders includes a chassis with a cradle receiving arrangement and a tank cradle for holding at least one air cylinder, wherein the tank cradle is removably secured to the chassis. Such an arrangement permits a variety of different tank cradles that may secure one or more cylinders but that are still compatible with a common backpack chassis.

Abstract: A fall protection arrangement including a rotatable hub and a lifeline having a first end attached to the hub and a second end for removable attachment to a user, an engagement mechanism to prevent rotation of the hub upon activation, and a braking arrangement to brake the payout of the lifeline during a fall event.